Steam-separator.



W. A; GAREW.

STEAM SEPARATOR.

APPLIOATION IILED'AUG. 7, 191's.

1,12%),(5538. Patented Feb. 23. 1915.

WTTED STATEB PATENT @FETQE.

WILLIAM A. CAREW, OF SYRACUSE, NEW YORK.

STEAM-SEPARATOR.

' Application filed August 7, 1913.

To all whom it may concern Be it known that I, WILLIAM A. CAREW, a citizen of the United States, residing at Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Steam- Separators, of which the following isa specification.

This invention relates to steam separators, that is to say, it belongs generally in that class of devices contrived to direct the live steam in one direction and any accompanying fluid particles in a different direction, and, this invention more particularly belongs with such devices intended to be located within a boiler shell at or near the regular steam outlet.

The object of this invention is the production of a steam separator having component parts of special construction and arrangement whereby it is believed that however violent the ebullition or foaming, or even the bodily movement of the boiler itself, the separation of the dry steam and any particles of fluid or otherwise is very completely efiected.

The construction and arrangement constituting this invention are set forth in the accompanying drawings, of which Figure 1 represents a side view, partly in vertical section, and Fig. 2 is a cross-section on the broken line ww, looking in the direction of the arrow.

In the drawings and throughout the description the same letter is used to refer to the same part.

Considering the drawings, Fig. 1 shows the shell A of a boiler, to which is attached by suitable hangers a, the top or head plate B. The head plate B, usually circular, possesses the depending flange b as shown, to which is bolted the hood C. The hood, as customarily made, has its wall downwardly and outwardly divergent from its center, and is provided with a flaring loweredge portion D, eXteriorly encircled at a higher point with an annular shed or 11p d. The purpose of introducing the shed 03 above and in addition to the lower edge D, is to prevent the water that is apt to follow the shell plates of the boiler inslde, from descending the outer surface of the hood C and accumulating solely on the lower edge of the hood, from which position it may be carried into the hood by the entering steam.

Clamped between the hood and the flange Specification of Letters Patent.

Patented Feb. 23, 1915.

Serial No. 783,570.

b of the head B, by the same bolts that secure the head, is a cylinder E open at the bottom as illustrated. The cylinder E supports, by means of the spacing bolts 0 shown in the drawings as passing through it radially, a cylinder F arranged between the cylinder E and the interior of the hood C, and an inner cylinder G, extending downwardly within the cylinder E. There is still another and central cylinder H, secured in a central opening through the head B, and it is through this central cylinder that the steam last passes on its way out of the boiler. It will be noted that the inside of the hood C is provided with inclined corrugations J running in one direction, and that the intermediate cylinder E is provided with corrugations 7' running in another direction. I do not limit myself to the provision of corrugations upon but two of the cylinders, or upon any particular side or sides of those cylinders. It is believed to be within the purview of this invention to corrugate any number of the cylinders, inclining those corrugations as may be desired.

Secured to and supported by the hanging cylinder F is the bottom casting or bowl K. The bowl has any number of drain spouts 7c, the mouths of which may be closed by valves L. The valves L hang directly downward, and, they are thus balanced against an inward or an outward flow, and the weight of any water caught by the bowl will open the valve L outwardly and permit the water to pass from the spout 70. It is not desirable that the valve L should be opened from inside the boiler but outside of the valve, by any surging or splashing of the contents of the boiler. To prevent such undesired opening, the spout k is provided with a projecting lip M, that protects the lower edge of the valve, and any splashing within the boiler tends to force the valve toward the spout instead of from it.

The inner cylinder G has attached to its lower edge an inverted conical casting N, which directs any fluid downwardly through the coupling tube 0 into a central cupshaped compartment P, formed by the standing flange Q within the bowl. Fluid from the central compartment P flows into the boiler through orifices R at the sides of the bowl, one orifice being shown in Fig. 1, and a vertically disposed valve, such as valve 2", guards the orifices B, in the same manner as the valve L controls the mouth of the spout 70. At its junction with the inner cylinder G, the inverted conical casting N is provided with the integrally formed, outwardly and downwardly curving apron or flange S, the purpose of which is to prevent any fluid accumulating in the spouts 7tfrom surging or splashing upwardly between cylinders E, F, and G and into the path of the passing steam. For like purpose, the inverted dish or pan T is suspended over the upper and larger mouth of the conical casting N.

In the operation of this invention, the steam from the boiler directly passes upwardly into the hood in the space between cylinder F and the inside of the hood. The steam flows against the corrugations of the hood which will catch fluid particles and return them to the boiler. The steam oontinues over the upper edge of the cylinder F and then downwardly between cylinders E and F, turning upwardly again around the lower edge of cylinder ll If fluid particles are carried by the steam, they will, to a very large extent, keep straight down into the bowl K. The steam passes upwardly between cylinders E and G, over the upper edge of cylinder G, then down again, and finally upwardly after turning the lower edge of the central cylinder Ii. The corrugations of the cylinders and hood and the various turns from downward to upward, eventually strain the steam of any fluid or other matter that may have originally started with it.

Having now described this invention and explained the mode of its operation, what I claim is 1. In a steam separator, the combination with a boiler shell, of a central steam pipe,

Copies of this patent may be obtained for five cents each, by addressing a plurality of cylinders concentrically arranged with respect to the said pipe, a bottom member or bowl supported by the said cylinders, the said bowl having discharge spouts provided with inwardlyclosing valves, and lips projecting outwardly beyond the valves to prevent the opening of the valves by the movements of the contents of the boiler.

2. In a steam separator, the combination with a boiler shell, of a central steam pipe, a plurality of cylinders concentrically arranged with respect to the said pipe, a bottom member or bowl supported by the said cylinders, the said bowl having a central compartment provided with a discharge opening and a valve closure therefor, the said bowl having discharge spouts and valve closures therefor, and projecting devices constructed and arranged to prevent the opening of the valves by the movements of the contents of the boiler.

3. In a steam separator, the combination with a boiler shell, of a central steam pipe, a plurality of cylinders concentrically arranged with respect to the said pipe, a bottom member or bowl supported by the said cylinders, the said bowl having a central compartment and spouts 1 )rojecting outwardly, and a member arranged above the bowl and having an upper surface inclining downwardly and inwardly to the said central compartment and an outwardly and downwardly curving apron arranged above the spouts to return fluid into the spouts.

In testimony whereof I afliX my signature, in presence of two witnesses.

WILLIAM A. CAREW.

Witnesses:

E. S. DAVIES, B. F. LAWRENCE.

the Commissioner of Patents.

Washington, D. G." 

